Lock.



J. W. FREEMAN.

LOOK.

APPLICATION FILED NOV. 27, 1909.

964,507; Patented July 19, 1910.

2 SHEETS-SHEET 1.

J. W. FREEMAN.

LOOK.

APPLICATION FILED NOV. 27, 1909.

964,507, Patented July 19, 1910.

2 SHEETS-SHEET 2.

LOCK.

season To all whom it may concern:

Be it known that 1, JOHN VVEsLEY FREE MAN, a citizen of the United States, residing at Kansas City, in the county of Wyandotte and State of Kansas, have invented a new and useful Lock, of which the following is a specification.

It is the object of this invention to provide a lock the latch of which is thrown, in a novel manner by a gravity tumbler, novel means being provided for actuating the tumbler.

Another object of the invention is to provide a latch actuating tumbler which shall be operative to hold the bolt in a retracted position, novel means being provided for breaking the engagement between the tumbler and the bolt, and for throwing the bolt after the bolt is set free.

Another object of the invention is to provide a means for limiting the movement of the tumbler, during the swing of the same to throw the latch, and during the swing of the same to free the bolt.

With these and other objects in view, the invention consists in the novel construction and arrangement of parts l'lereinafter described, delineated in the accompanying drawings, and specifically claimed, it being understood that changes, properly falling within the scope of what is claimed, may be made, without departing from the spirit of the invention.

Similar numerals of reference are employed to denote corresponding parts throughout the several figures of the drawings.

In the accompanying drawings,Figure 1 is a. side elevation of the device, parts being broken away better to illustrate the structure, the latch being shown in its advanced position, and the bolt being shown in its retracted position, the figure showing the parts in the relations which they will most commonly assume with respect to one another; Fig. 2 is a side elevation, a portion of the casing being removed as in Fig. 1, both the latch and bolt being retracted, and the key-barrel being removed; Figs. 3 and 4 are detail perspectives of the keys which are employed for the manipulation of the lock; Fig. 5

Specification of Letters Patent.

Application filed November 27, 1909.

Patented July 19, 1910. Serial No. 530,216.

signed to show the portions of the body of the case and the closure therefor, in which the key-barrel is mounted, and likewise to show the key-holes; Fig. 6 is a detail perspective of the key-barrel; Fig. 7 is a side elevation of the device, a portion of the cas ing being removed, and the latch and the bolt being shown in advanced positions, and there locked by means of the dog; Fig. 8 is a fragmental perspective upon an enlarged scale, adapted to show the manner in which the key-barrel receives the key, and the manner in which the key, being mounted in the keybarrel, engages the bolt, either to throw or to retract the same; Fig. 9 is a detail perspective of the tumbler; Fig. 10 is a detail perspective of the latch; Fig. 11 is a detail perspective of the arm whereby the tumbler is lifted, and of the knob-thimble, of which the arm is an integral part; Fig. 12 is a detail perspective of the bolt; and Fig. 13 is a detail perspective of the dog.

The casing of the lock includes a box-like body 1, closed at one end by the flange 2, whereby the casing is assembled with the door, one side of the body 1 being closed by a plate 3, which is adapted to be secured by means of a screw or the like, to a stud l which outstands from the body 1. These details are common and well known and a further description, or a more detailed delineation of them, is considered unnecessary.

Rotatably mounted in the casing is a thimble 5, orovided with the polygonal opening in which is mounted the spindle, whereby the door knob is carried. This member 5 will be referred to hereinafter as the knob-thimble. The knob-thimble 5 is provided with an integrally formed arm 6, cut away on one face, to form wings 7 and 8. Compared with the knob-thimble from which it outstands, the arm 6 is of considerable proportions, so that it may readily drop, gravitationally, at its free end, to ward the bottom of the casing. The upper edge of the arm 6, adjacent its free end, is cut away, to form a shoulder 9.

The tumbler 10 is provided with an opening 11, adapted to receive the stud 4, whereby the tumbler may be pivotally mounted upon the stud, the opening 11 in the tumis a fragmental side elevation del bler being relatively near to one end thereof,

so that the tumbler, like the arm 6, may fall gravitationally, toward the bottom of the casing. Adjacent its free end, the tumbler 10 is overbent to form a finger 12. This finger 12 is adapted to overhang the upper edge of the arm 6, so that when the knobthimble 5 is rotated, the arm 6, being raised, will engage the finger 12 to lift the free end of the tumbler 10, thefinger 12 being adapted to abut against the shoulder 9 of the arm, to limit the lifting of the tumbler.

Adjacent its upper edge, and near one end, the tumbler 10 carries an outstanding stud 1 1 which is adapted to register rotatably in an opening 15 in one end of the latch 16, the latch being slidably mounted in the flange 2, in the usual manner. Upon its lower edge, the tumbler 10 has a notch 17, adapted to clear a lug 18 which upstands from the bottom of the casing. Between this notch 17 and the free end of the tumbler, there is another notch 19, adapted to interlock with a lateral projection 20, upon the bolt 21, the projection 20 serving, as shown in Fig. 7 of the drawings, to prevent the bolt 21 from sliding through the flange 2 of the casing, the notch 19 and the projection 20 being shown most clearly in their interlocking relation, in Fig. 1 of the drawings.

The bolt 21 is provided in its lower edge, with notches 22 and 23, the notch 22 being engageable by the lug 18 to hold the bolt in advanced position, and the notch 23 serving, through its engagement with the lug 18, in conjunction with the notch 19 and the projection 20, to hold the bolt in retracted position, the construction referred to being shown most clearly in Fig. 2 of the drawings. The bolt 21 rests upon the wing 8 of the arm and the latch 16 rests upon the wing '7 thereof, the parts last above mentioned, together with the tumbler 10, being thus disposed in a relatively small compass, transversely of the casing.

Adjacent its rear end, the bolt 21 is cut away as shown at 24:, to form an arm 25, adapted to hook over a key-barrel 26, the key-barrel having, as shown in Fig. 6, reduced ends, adapted for rotatable mounting in openings 27 in the body 1 and in the plate 3, there being, as shown in Fig. 5, diametrically disposed slots 28, outstanding beyond the periphery of the opening 27, the slots 28 serving to receive a key. The key-barrel 26 has a longitudinally disposed seat 29, adapted to receive a key 30, shown in Fig. 4: of the drawings, to direct an outstanding finger 31 of the key, to register in an opening 32, disposed entirely within the contour of the arm 25 of the bolt, the key 30 being cut away upon one edge as denoted by the numeral 33, so that the key in its rotation with the keybarrel, may clear the body 1 of the casing, or

the plate 3 thereof, it of course being ob vious that the key 30 may be inserted from either side of the casingto throw the bolt.

In order to hold the latch 16 and the bolt 21 in their advanced positions, a dog 34, shown in Fig. 13, is rotatably mounted in the casing. The dog is provided with a ra dially extending arm 35, adapted, as shown in Fig. 7, to bear against the rear end 37 of the wing 7 of the arm, the casing being cut away, as shown at 36, to provide for the movement of the arm of the dog. The dog is provided with a handle 38, whereby the dog may be manipulated from the inner side of the door upon which the lock is mounted, the dog being manipulable from the exterior of the door, by means of a key 41, the tines 40 of which are adapted to register in seats 39 in one end of the dog.

Referring to Fig. 1, the operation of the device is as follows :1Vhen the door is closed, the extremity of the latch 16 will engage the striking plate, tilting the tumbler 10 upon its pivotal mounting a. When the extremity of the latch 16 enters the opening in the striking plate, the weight of the tumbler 10 will throw the latch 16 into advanced position. Vhen it is desired to retract the latch 16, the knob-thimble 5 is rotated in the usual manner, lifting the arm 6. As the arm 6 is lifted, its free extremity will ongage the finger 12 of the tumbler, lifting the tumbler and retracting the latch 16. The finger 12, sliding along the upper edge of the arm 6, will ultimately abut against the shoulder 9, the movement of the tumbler, and consequently the retraction of the latch 16, being thereby limited. When it is de-' sired to throw the bolt 21 into advanced position, the knob-thimble 5 is rotated, lifting the free end of the arm 6, and consequently lifting the free end of the tumbler 10, in the manner hereinbefore described in connection with the operation of the latch 16. This lifting of the tumbler 10 will move the tumbler from the position shown in Fig. 1 of the drawings to that shown in Fig. 2 thereof, the projection 20 upon the bolt 21, being, in the latter instance, out of engagement with the notch 19 of the tumbler. The bolt 21 may now be thrown by means of the key 30, from either side of the casing. To throw the bolt 21 by means of the key 30, the key is inserted into the seat 29 of the keybarrel 26, through the slot 28, the finger 31 of the key registering in the opening 32 of the bolt 21. hen the key and key-barrel are rotated, the arm 25 of the bolt 21 will be lifted over the key-barrel 26, into the position shown in Fig. 7 of the drawings, the lug 18 upon the casing passing out of its engagement with the notch 23 of the bolt, into engagement with the notch 22 of the bolt, the bolt being advanced into the advanced position shown in Fig. 7. When it is desired to lock either the latch 16 or the bolt 21 in advanced position, or to lock them both in advanced positions, the dog 34 is manipulated by vmeans of the element 38, or by means of the key tl, depending upon which side of the door the operator stands, to assume the position shown in Fig. 7 the engagement between the arm 35 of the dog and the end 37 of the wing 7 of the arm, obviously preventing the rotation of the knob-thimble 5, and the consequent lifting of the tumbler 10.

Having thus described the invention, What is claimed is 1. A device of the class described comprising a casing; a latch slidably mounted in the casing; a knob-thimble rotatably mounted in the casing and provided with a gravitationally depressible arm; a gravitationally depressible tumbler pivoted in the casing and pivotally connected with the latch to advance the latch, the tumbler being liftable by the arm to retract the latch, and the tumbler and the arm being provided with interlocking elements to limit the lifting of the tumbler.

2. A device of the class described comprising a casing; a latch slidably mounted in the casing; a knob-thimble rotatably mounted in the casing and provided with a gravitationally dcpressible arm; a gravitationally depressible tumbler pivoted in the casing and pivotally connected with the latch to advance the latch, the arm being cut away upon its upper edge to define a shoulder therein, and the tumbler having a finger to overhang the arm and to engage the shoulder, the finger being engagcable by the arm to lift the tumbler, and being engagcable by the shoulder to limit the lifting of the tumbler.

3. A device of the class described comprising a casing; a-bolt slidably mounted in the casing; a knob-thimble rotatably mounted in the casing and provided with a gravitationally depressible arm; a gravitationally depressible tumbler pivoted in the casing, the tumbler and the bolt being provided with interlocking elements to hold the bolt in retracted position; the tumbler being liftable by the arm to break the engagement between the interlocking elements.

4. A device of the class described comprising a casing; a bolt slidably mounted in the casing; a knob-thimble rotatably mounted in the casing and provided with a gravitationally depressible arm; a gravitationally depressible tumbler pivoted in the casing, the tumbler and the bolt being provided with interlocking elements to hold the bolt in retracted position; the tumbler being liftable by the arm to break the engagement between the interlocking elements of the tumbler and the bolt; the tumbler and the 1 arm being provided with other interlocking elements to limitthe lifting of the arm.

A device of the class described comprising a casing; a bolt slidably mounted in the casing; a knob-thimble rotatably mounted in the casing and provided with a gravitationally depressi ble arm; a gravitationally depressible tumbler pivoted in the casing, the tumbler and the bolt being provided with interlocking elements to hold the bolt in retracted position; the arm being cut away upon its upper edge to define a shoulder therein, and the tumbler having a finger to overhang the arm and to engage the shoulder, the finger being engagcable by the arm to lift the tumbler to break the engagement between the interlocking elements, and. the finger being engagcable by the shoulder to limit the lifting of the tumbler.

6. A device of the class described com prising a casing; a bolt and a latch slidably mounted in the casing; a knob-thimble rotatably mounted in the casing and provided with a gravitationally depressible arm; a. gravitationally depressible tumbler pivoted in the casing and pivotally connected with and the bolt being provided with interlocking elements to hold the bolt in retracted position, the tumbler being liftable by the arm to retractthe latch to break the engage ment between the interlocking elements of the bolt and the tumbler.

7. A device of the class described comprising a casing; a bolt and a latch slidably mounted in the casing; a knob-thimble rotatably mounted in the casing and provided with a gravitationally depressible arm; a gravitationally depressible tumbler pivoted in the casing and pivotally connected With the latch to advance the latch; the tumbler and the bolt being provided with interlocking elements to hold the bolt in retracted position, the tumbler being liftable by the arm to retract the latch to break the engagement between the interlocking elements of the bolt and tumbler; the tumbler and the arm being provided with interlocking elements to limit the lifting of the tumbler.

8. A device of the class described com prising a casing; a bolt and a latch slidably mounted in the casing; a knob-thimble vided with a gravitationally depressible arm; a gravitationally depressible tumbler pivoted in the casing and pivotally connected with the latch to advance the latch; the tumbler and the bolt being provided with interlocking elements to hold the bolt in retracted position; the arm being cut away upon its upper edge to define a shoulder therein, and the tumbler having a finger to overhang the arm and to engage the shoulthe latch to advance the latch; the tumbler rotatably mounted in the casing and pro eler, the finger being engageable by the arm my own, I have hereto afliXecl my signature to lift the tumbler to retract the latch and in the presence of two Witnesses.

to break the en a ement between the inter- T W1 7 v T locking element? at the bolt and tumbler, JOHA 138L131 FRbEMAh'Y 5 the finger being engageable by the shoulder \Vitnesses:

to limit the lifting of the tumbler. A. J. BREIDENTHAL,

In testimony that I claim the foregoing as I F. H. NESSELRODE. 

